Forgive me if this is a dumb question...I'm a Windows sys admin with little programming knowledge.
I have files containing anywhere from 3 to 200 lines. Using SED, I want to extract only lines containing a specific instance of "ISS." It is possible that "ISS" will occur several times in a... (10 Replies)
Hi all,
Can anyone please help me in parsing the following file. Suppose the file is called, example.lst, and has the following content in it.
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS =
(PROTOCOL = TCP)
(Host = 192.168.2.2)
... (3 Replies)
Any clues on how to parse a line returned from an ls command that allows for the filename to be fully passed even if it includes spaces? What I got close with is:
ls -ltra | awk '{print $1 "|" $3 "|" $4 "|" $5 "|" $6 "|" $7 "|" $8 "|" $9 $10 $11 $12 ... (etc)}'
However this clears the spaces in... (6 Replies)
Hi all,
I have a data file from which i would like to extract only certain fields, which are not adjacent to each other. Following is the format of data file (data.txt) that i have, which has about 6 fields delimited by "|"
HARRIS|23|IT|PROGRAMMER|CHICAGO|EMP
JOHN|35|IT|JAVA|NY|CON... (2 Replies)
I need to extract the character before the last "|" in the following lines, which are 'N' and 'U'. The last "|" shouldn't be extracted. Also the no.s of "|" may vary in a line, but I need only the character before the last one.
... (1 Reply)
Hello everybody,
Here is my problem : I cannot find a way to extract data from a particular file and more precisely I cannot extract the result of my awk script to an external file because I am currently working on HP-UX.
I would like a simple script (without awk) which asks for a date like... (4 Replies)
How to write in awk to remove lines starting with "#" and then process the file:
This is not working:
cat file|awk '{if ($0 ~ /^#/) $0="";print NF>0}'
When I just give cat file|awk '{if ($0 ~ /^#/) $0="";print }'
it prints the blank lines . I don't wnat the blank lines along with the... (15 Replies)
Hi
I have some data in a file as below
******************************
Class 1A
Students absent are :
1. ABC
2. CDE
3. CPE
******************************
Class 2A
Students absent are :
******************************
Class 3A
Students absent are : (6 Replies)
Discussion started by: reldb
6 Replies
LEARN ABOUT FREEBSD
comm
COMM(1) BSD General Commands Manual COMM(1)NAME
comm -- select or reject lines common to two files
SYNOPSIS
comm [-123i] file1 file2
DESCRIPTION
The comm utility reads file1 and file2, which should be sorted lexically, and produces three text columns as output: lines only in file1;
lines only in file2; and lines in both files.
The filename ``-'' means the standard input.
The following options are available:
-1 Suppress printing of column 1, lines only in file1.
-2 Suppress printing of column 2, lines only in file2.
-3 Suppress printing of column 3, lines common to both.
-i Case insensitive comparison of lines.
Each column will have a number of tab characters prepended to it equal to the number of lower numbered columns that are being printed. For
example, if column number two is being suppressed, lines printed in column number one will not have any tabs preceding them, and lines
printed in column number three will have one.
The comm utility assumes that the files are lexically sorted; all characters participate in line comparisons.
ENVIRONMENT
The LANG, LC_ALL, LC_COLLATE, and LC_CTYPE environment variables affect the execution of comm as described in environ(7).
EXIT STATUS
The comm utility exits 0 on success, and >0 if an error occurs.
SEE ALSO cmp(1), diff(1), sort(1), uniq(1)STANDARDS
The comm utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').
The -i option is an extension to the POSIX standard.
HISTORY
A comm command appeared in Version 4 AT&T UNIX.
BSD December 12, 2009 BSD